Hack saw



,Jul '7, 1931. F H. BUN Y 1,812,928

HACK SAW Filed June 10, 1930 i for locking the handle in 25-member 12being held in taut Patented July 7, 1931 UNITED STATES P TENT- OFFICEFRED H. BUNnY, or MANHATTAN; xANsA's HACK SAW Application filed June 10,

The present invention relates to saws and more particularly to anadjustable handle for a hack saw.

An object of this invention is to provide a v handle structure which maybe readily secured to a conventional hack saw. frame, the

handle structure being such as to permit adjustmentof the handle withrespect to the frame.

Another object of this invention is to pro- 'vide in an adjustable hacksaw handle means adjusted position with respect to the frame. 7

' The above and various other objects and 15 advantages of thisinvention will in part be described in and'in part be understood fromthe following detailed description of the present preferred embodiment,the same being illustrated in the accompanying draw- 20 in s:

igure 1 is a fragmentary detail side elevation of a device constructedaccording to the preferred embodiment of this invention Figure 2 is asectional view taken on the 22 of Figure 1; Figure 3 is a fragmentaryend elevation of the handle; v

Figure 4 is a fragmentary end elevation of the'attaching plate mountedon the hack 30 saw frame; and

Figure 5 is a sectional view taken on the line 5-5 of Figure 1.

:7 Referring to the drawings wherein like numerals ofreference designatecorrespond- 35 ing parts throughout the several views, the numeral 10designates a hack saw'frame which comprises a front section 11 and arear section 12, thev front section being slidably and adjustablymounted in the rear section,

to being held in adjusted position by a pin 13 which is adapted toengage in selected re- I cesses 14 in the front frame.

' A hack saw blade 15 engages against the front frame member 11 and therear frame position by means'of a thumb bolt 16 carried by the 'frame10. it 7 I A handle structure generally designated as 17 is adapted tobe adjustabl" mounted on e the rear frame section 12, the handle 17 beof which the angular 22 with respectto the frame 10 can be readily 1930.Serial No. 460,270.

ing adjustably secured to a fixed plate 18 of disc-like constructionwhich is provided with forwardly projecting ar1ns- 19, the arms 19 beingmounted 'in spaced relation to each other on the forward face of thedisc18 and 5a adapted to engage about the opposite sides of the framesection 12. Thearm members 19' are secured tothe rear frame 12 by meansof rivets 20 or the like.

A stud or threaded bolt 21 is secured axial- 6 ly to the plate 12 andextends rearwardly therefrom, and a handle body 22 having a disc 23 atthe forward end thereof is adapted to be, mounted on the stud or bolt21, the fore ward face of the disc 23 engaging against the rear fac'e'orsurface of the disc 18. The disc 23 is provided with a plurality ofspaced recesses 24 whichare positioned concentrically'a-bout the axialopening 25 therein and a locking outstanding lug 27 on one of the arms19 the locking bolt 26 extending through the disc 18 and into selectedrecesses 24 so as to hold the handle '22 against rotary movement withrespect to the plate 18. l

7 The plate 18 is provided with suitable marks or depressions 28 in theperiphery thereof, and, in like manner the plate 23 is provided with amark or indicia 29 by means position of the handle member 23 may bepositioned on the bolt 21 9 and held thereupon against longitudinalmovement by a threaded nut 30 but permitted toliav'e relative rotarymovement upon the bolt 21. The thumb bolt 26 may be ro titted reverselybolt 26 is threadably mounted inan the select a5 portion 18 has been 9so to permit the rotation or swinging of the handle 17 upon the bolt 21and when the check mark 29 registers with the desired mark 28 on thedisc 18 the thumb bolt 26 may be rotated so as to 5 move the inner endof the'bolt into the recess 24: which is in register or alignment Withthe bolt 26 when the mark 29 registers with the mark/2,8. When thelocking bolt 26 isin engagement with the selectedn'eeess 2a the 10handle is held upon the frame 10 against/r0 tary or swinging movementand the hack saw may be used in the conventional manner. It 15,01"-course, understood that various changes and modifications may be made in15 the details of construction and 'design'of the abovespecificallydescribed embodiment of, this invention without departing from thespirit thereof, 'suchf changes and modifica tions being restricted onlyby the scope of 2G, thefollow-ing claim} g Y I What is claimed is 1 v Vj An attachm-ent for Connecting anfadjusb able handle with a hack'sawU-frame comprising a plate member having forwardly V 25 projectingspaced arms engaging[one of the arms of the U-frame above thesawjendfen- V v v a gaging means, means for securing said arms to said hacksaw f'rame'arm, a threaded bo-ltf secured to said plate andextendingfrean' so wardly therefrom, a handle loosely mounted onsaidbolt and'havingjaface with re cesses therein, means engagingsaidboltfor yieldably'holding said handle against longi- V tudinalmovement, and a thumb bolt threadably mounted in said plate andadaptedto engage ina selected recess of said handle whereby to holdsaidhandle uponsaid bolt against circumferential movement.

' In testimony whereof I hereunto afiix my signature. v

FRED BUNDY.

